Fix PowerShell Gallery preview badge

[PrzemyslawKlys]

Shields changed the PowerShell Gallery prerelease badge endpoint and the old vpre badge now renders a placeholder link.

This updates README badge URLs to use the normal PowerShell Gallery version badge with include_prereleases, so it displays the prerelease version again.

Ref: badges/shields#11583

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[claude]

Pull Request Review

Summary

This PR fixes the PowerShell Gallery prerelease badge by updating the Shields.io badge URL from the deprecated vpre endpoint to the standard v endpoint with the include_prereleases parameter.

Code Quality ✓

Strengths:

• The change is minimal, focused, and addresses the specific issue
• The solution follows the Shields.io recommended approach for displaying prerelease versions
• The badge maintains the same visual styling (style=flat-square, colorB=yellow) and labeling for consistency
• The PR description provides clear context with a reference to the upstream Shields.io issue

Technical Review ✓

Changes Made:

- https://img.shields.io/powershellgallery/vpre/PSWriteHTML.svg?label=powershell%20gallery%20preview&colorB=yellow&style=flat-square
+ https://img.shields.io/powershellgallery/v/PSWriteHTML.svg?label=powershell%20gallery%20preview&colorB=yellow&style=flat-square&include_prereleases

Analysis:

• The change replaces /vpre/ with /v/ and adds &include_prereleases parameter
• This aligns with Shields.io's updated badge endpoints where vpre is deprecated
• The badge will now display the latest version including prereleases when they exist

Potential Issues: None Found

No bugs, security concerns, or performance issues identified. This is a documentation-only change affecting badge rendering.

Recommendations

Minor Observation (Line 4):
I noticed line 4 in readme.md has a potential issue unrelated to this PR:

<a href="https://github.com/EvotecIT/PSWriteHTML/actions/workflows/powershell-tests.yml"><img src="https://github.com/EvotecIT/PSWriteHTML/actions/workflows/ci.yml/badge.svg"></a>

The link points to powershell-tests.yml but the badge image points to ci.yml. This may be intentional, but you might want to verify these workflow references are correct.

Verdict: ✅ Approve

This is a clean, well-documented fix for a real issue. The change is safe to merge.

Test Coverage: Not applicable - this is a documentation change only.

Reviewed by: Claude Code